A solution is prepared by dissolving 10.0 g of NaBr and 10.0 g of Na2SO4 in water to make a 100.0 mL solution. This solution is then mixed with 75.0 mL of a 0.800 M aqueous solution of AlBr3. Calculate the concentration (M) of Na+ and Br− in the final solution.

Explanation:

Hello,

At first, it turns out convenient to compute the total moles of sodium that will be dissolved into the solution by considering the added amounts of sodium bromide and sodium sulfate:

Once we've got the moles we compute the final volume via:

Thus, the molarity of the sodium atoms turn out into:

Now, we perform the same procedure but now for the bromide ions:

Finally, its molarity results:

Best regards.

Related Questions

In the image, two circles are centered at A. The circle containing B was dilated to produce the circle containing B′. What is the scale factor of the dilation?

I think its B.

Explanation:

Which of the following statements is not true of gamma radiation? A) Gamma rays have no mass. B) Gamma rays severely damage living cells. C) Gamma rays are high frequency electromagnetic waves. D) Gamma rays are deflected toward the positive terminal in a magnetic field.

The statement that is not true of gamma radiation is  : D. Gamma rays are deflected toward the positive terminal in a magnetic field

Gamma rays will be deflected straight to both negative and positive ways in a magnetic field

hope this helps

Gamma rays are deflected toward the positive terminal in a magnetic field.

Explanation:

Gamma rays have no mass and no charge. so if they are passed through any field, they will not deflect either towards positive terminal or negative terminal. It will go straight.

The gamma rays are shortest wavelength electromangetic waves, so they have high energy and thus can damage severely living cells, if come in contact with it.

How many protons are there in a iron molecule?

Explanation: Iron has an atomic number of 26. That means iron has 26 protons and 26 electrons. With those numbers, the atom is neutral.

It takes 48 minutes for 7 people to paint 7 walls.How many minutes does it take 20 people to paint 20 walks?

Explanation:

It will always take 48 minutes. Even if it was one thousand people to paint one thousand walls.

The point here is that it takes 48 minutes for one person to paint one wall. As long as the number of people is the same as the number of walls, it will always take 48 minutes.

Why does tap water or pool water typically test positive for the presence of chlorine

Pool water contains chlorine to keep it sanitary

In a chemical reaction occurring in an open beaker, the reactants have a mass of 10.0 g and contain 1000 J of energy. The products in the beaker contain a mass of 5.0 g and 500 J of energy. Which best explains the difference in energy and mass as reactants are converted to products? kinetic energy closed systems law of conservation electromagnetic energy

Answer : The correct option is, Kinetic energy.

Explanation :

According to the kinetic energy, the kinetic energy is directly proportional to the mass of an object and the square of the velocity of an object.

The formula of kinetic energy is,

where,

K.E = kinetic energy

m = mass of an object

v = velocity of an object

From this we conclude that there is a direct relationship between the kinetic energy and the mass of an object.

As per question, the reactant have a mass of 10 grams and contains energy 1000 J and the product have a mass of 5 grams and contains energy 500 J that means as the mass of an object decreases, the kinetic energy is also decreases.

Hence, the correct option is, Kinetic energy.

C. law of conservation of energy

This is the correct answer on edge.

What happens before the nucleus of the parent cell has divided into two new nuclear

Before I get to the answer, I would recommend that you post biology questions under the biology category. You should get your answers more quickly that way :)
There are two things that happen before a parent cell divides:
1) DNA in the nucleus of the parent cell must replicate (this happens in the S phase of the cell cycle). If you're looking for a single answer to your question, then this is probably it.
2) Also, the cell must grow and some organelles (like the mitochondria) must also replicate before the parent cell divides. If organelles like the mitochondria did not replicate, then you would eventually end up with daughter cells that don't have enough mitochondria to support themselves.

Element m reacts with chlorine to form a compound with the formula mcl2. element m is more reactive than magnesium and has a smaller radius than barium. this element is __________.